SOLVED

51) The following reaction is exothermic. Which change will shift the equilibrium to the left? 2 SO2(g) + O2(g) ? 2 SO3(g) A) raising the temperature B) adding SO3 C) removing O2 D) all of the above E) none of the above 52) The following reaction is exothermic. Which change will shift the equilibrium to the left? 2 SO2(g) + O2(g) ? 2 SO3(g) A) raising the temperature B) decrease pressure C) increase volume D) all of the above E) none of the above 53) The following reaction is exothermic. What set of conditions will always lead to the equilibrium shifting to the left? 2 NO(g) + Br2(g) ? 2 NOBr(g) A) decrease the volume, decrease the temperature B) increase the volume, decrease the temperature C) increase the volume, increase the temperature D) decrease the volume, increase the temperature E) none of the above 54) The following reaction is endothermic. What effect will decreasing the temperature have on the system?  I2(g) + Cl2(g) ? 2 ICl(g) A) The equilibrium constant will change and the reaction will proceed in the forward direction B) The equilibrium constant will change and the reaction will proceed in the reverse direction C) The equilibrium constant will remain constant and the reaction will proceed in the forward direction D) The equilibrium constant will remain constant and the reaction will proceed in the reverse direction 55) Consider the following reaction at equilibrium. What effect will adding more SO3 have on the system? SO2(g) + NO2(g) ? SO3(g) + NO(g) A) The reaction will shift in the direction of products. B) The reaction will shift to decrease the pressure. C) No change will occur since SO3 is not included in the equilibrium expression. D) The reaction will shift in the direction of reactants. E) The equilibrium constant will decrease. 56) Consider the following reaction at equilibrium. What effect will raising the pressure of the system from 5 atm to 8 atm? 2 NH3(g) ? N2(g) + 3 H2(g) A) It will shift to the right B) It will shift to the left C) It will have no effect D) It will speed up the reaction E) It will slow down the reaction 57) Consider the following reaction at equilibrium. What effect will removing NO2 have on the system? SO2(g) + NO2(g) ? SO3(g) + NO(g) A) The reaction will shift in the direction of products. B) The reaction will shift to decrease the pressure. C) No change will occur since SO3 is not included in the equilibrium expression. D) The reaction will shift in the direction of reactants. E) The equilibrium constant will decrease. 58) Consider the following reaction at equilibrium. What effect will adding more H2S have on the system? 2 H2S(g) + 3 O2(g) ? 2 H2O(g) + 2 SO2(g) A) The reaction will shift to the left. B) No change will be observed. C) The equilibrium constant will decrease. D) The equilibrium constant will increase. E) The reaction will shift in the direction of products. 59) Consider the following reaction at equilibrium. What effect will removing H2O have on the system? 2 H2S(g) + 3 O2(g) ? 2 H2O(g) + 2 SO2(g) A) The reaction will shift to the left. B) No change will be observed. C) The equilibrium constant will decrease. D) The equilibrium constant will increase. E) The reaction will shift in the direction of products. 60) Consider the following reaction at equilibrium. What effect will increasing the volume of the reaction mixture have on the system? 2 H2S(g) + 3 O2(g) ? 2 H2O(g) + 2 SO2(g) A) The reaction will shift to the right in the direction of products. B) No effect will be observed. C) The reaction will shift to the left in the direction of reactants. D) The equilibrium constant will decrease. E) The equilibrium constant will increase.